Staircase winds down the side of Telegraph Hill through gardens, wild parrots flying overhead.

This teeny-tiny park built by a San Francisco man in 1962 is mostly stairs.

A psychedelic labyrinth on the San Francisco bay.

This residential door allows San Francisco muggles a glimpse at the wizarding world.

Beneath the southern end of the Golden Gate Bridge is the “Gibraltar of the West Coast,” a fort built to protect the San Francisco Bay from naval attack.

There is no trying to fall in love with this Star Wars fountain, you just do or do not.

San Francisco's oldest surviving monument and meeting place for 1906 survivors.

An ancient aqueduct tells the story of Sardinia's ancient Roman past.

This cliff-face port is considered a masterpiece of mining engineering.

On the coast of Sardinia, a once-great mining village is finding new life as a coastal resort town.

This elaborate hole in the ground was built as a sacred site for an ancient civilization.

A Nuragic tomb, a Roman tomb, and a Byzantine Church, all hidden inside a rock.

Windblown rock formations in an ancient Roman quarry.

Mysterious tombstones thought to be remnants of Atlantis.

At the entrance of this chapel is a fresco commemorating the dead from the plague outbreak of 1630.

Angels and demons watch over newspapers in this deconsecrated church.

If you ever wanted to touch a medieval mercenary’s three testicles, look no further.

See what remains of a once grand ancient Roman circus.

The mark of the Devil's horns on a marble column in Milan.

Milan's duomo is covered in beautiful carving including a curious "dinosaur-like" beast.

This grisly effigy displays an early Christian martyr who was skinned alive and beheaded.

A brutalist gem towering over the heart of Milan.

This giant middle finger statue sends an unambiguous message to Italy's bankers.

Third time's a charm, or in this case, two testicles are.